Expansion Joint Patents Confirmed, Awarded and Pending for EMSEAL

[ad_1] Update April 17, 2025: On October 4, 2022 US Patent 11,459,748 issued. This patent broadens coverage on Sika Emseal’s  fire-rated tunnel expansion joint systems. Update December 14, 2021: On November 23, 2021 US Patent 11,180,995 issued. This patent broadens coverage on Sika Emseal’s  fire-rated tunnel expansion joint systems. Update March 29, 2021: On March 9th, […]